49 CFR 172 Special Provision N34 (N-Codes)

These provisions apply only to non-bulk packagings.

Code	N34
Description	Aluminum construction materials are not authorized for any part of a packaging which is normally in contact with the hazardous material.
HazMat with this Code	UN 2258 - 1,2-Propylenediamine UN 1278 - 1-Chloropropane UN 1916 - 2,2’-Dichlorodiethyl ether UN 1541 - Acetone cyanohydrin, stabilized UN 1717 - Acetyl chloride UN 1421 - Alkali metal alloys, liquid, n.o.s UN 1389 - Alkali metal amalgam, liquid UN 1392 - Alkaline earth metal amalgams, liquid UN 3402 - Alkaline earth metal amalgams, solid UN 1723 - Allyl iodide UN 1724 - Allyltrichlorosilane, stabilized UN 2734 - Amine, liquid, corrosive, flammable, n.o.s. or Polyamines, liquid, corrosive, flammable, n.o.s UN 2735 - Amines, liquid, corrosive, n.o.s., or Polyamines, liquid, corrosive, n.o.s. UN 1727 - Ammonium hydrogendifluoride, solid UN 2817 - Ammonium hydrogendifluoride, solution UN 1728 - Amyltrichlorosilane UN 1445 - Barium chlorate, solid UN 3405 - Barium chlorate, solution UN 2741 - Barium hypochlorite with more than 22 percent available chlorine UN 2796 - Battery fluid, acid UN 1737 - Benzyl bromide UN 1738 - Benzyl chloride unstabilized UN 2837 - Bisulfate, aqueous solution UN 2692 - Boron tribromide UN 1744 - Bromine UN 1744 - Bromine solutions UN 3425 - Bromoacetic acid, solid UN 1747 - Butyltrichlorosilane UN 1402 - Calcium carbide UN 1452 - Calcium chlorate UN 1453 - Calcium chlorite UN 3486 - Calcium hypochlorite mixture, dry, corrosive with more than 10% but not more than 39% available chlorine UN 2208 - Calcium hypochlorite mixture, dry, with more than 10% but not more than 39% available chlorine UN 1748 - Calcium hypochlorite, dry or Calcium hypochlorite mixture dry with more than 39% available chlorine (8.8% available oxygen) UN 3485 - Calcium hypochlorite, dry, corrosive or Calcium hypochlorite mixture, dry, corrosive with more than 39% available chlorine (8.8% available oxygen) UN 1333 - Cerium, slabs, ingots, or rods UN 1407 - Cesium or Caesium UN 1458 - Chlorate and borate mixtures UN 1459 - Chlorate and magnesium chloride mixture solid UN 3407 - Chlorate and magnesium chloride mixture solution UN 1461 - Chlorates, inorganic, n.o.s UN 1908 - Chlorite solution UN 1462 - Chlorites, inorganic, n.o.s UN 1751 - Chloroacetic acid, solid UN 1750 - Chloroacetic acid, solution UN 1695 - Chloroacetone, stabilized UN 1697 - Chloroacetophenone, solid, (CN) UN 1752 - Chloroacetyl chloride UN 1753 - Chlorophenyltrichlorosilane UN 1758 - Chromium oxychloride UN 2240 - Chromosulfuric acid UN 1762 - Cyclohexenyltrichlorosilane UN 1763 - Cyclohexyltrichlorosilane UN 1764 - Dichloroacetic acid UN 1765 - Dichloroacetyl chloride UN 1766 - Dichlorophenyltrichlorosilane UN 1154 - Diethylamine UN 1767 - Diethyldichlorosilane UN 1768 - Difluorophosphoric acid, anhydrous UN 1699 - Diphenylchloroarsine, liquid UN 1769 - Diphenyldichlorosilane UN 1771 - Dodecyltrichlorosilane UN 1182 - Ethyl chloroformate UN 1183 - Ethyldichlorosilane UN 2983 - Ethylene oxide and propylene oxide mixtures, with not more than 30 percent ethylene oxide UN 2435 - Ethylphenyldichlorosilane UN 1196 - Ethyltrichlorosilane UN 1775 - Fluoroboric acid UN 1776 - Fluorophosphoric acid anhydrous UN 1778 - Fluorosilicic acid UN 2545 - Hafnium powder, dry UN 1326 - Hafnium powder, wetted with not less than 25 percent water (a visible excess of water must be present) (a) mechanically produced, particle size less than 53 microns; (b) chemically produced, particle size less than 840 microns UN 1781 - Hexadecyltrichlorosilane UN 1782 - Hexafluorophosphoric acid UN 1784 - Hexyltrichlorosilane UN 1786 - Hydrofluoric acid and Sulfuric acid mixtures UN 1790 - Hydrofluoric acid, with more than 60 percent strength UN 1790 - Hydrofluoric acid, with not more than 60 percent strength UN 1740 - Hydrogendifluoride, solid, n.o.s UN 1791 - Hypochlorite solutions UN 1411 - Lithium aluminum hydride, ethereal UN 1471 - Lithium hypochlorite, dry or Lithium hypochlorite mixture UN 1472 - Lithium peroxide UN 1419 - Magnesium aluminum phosphide UN 2881 - Metal catalyst, dry UN 1378 - Metal catalyst, wetted with a visible excess of liquid UN 1409 - Metal hydrides, water reactive, n.o.s UN 1238 - Methyl chloroformate NA9206 - Methyl phosphonic dichloride UN 2534 - Methylchlorosilane UN 1242 - Methyldichlorosilane UN 1244 - Methylhydrazine UN 1250 - Methyltrichlorosilane UN 2740 - n-Propyl chloroformate UN 1204 - Nitroglycerin solution in alcohol with not more than 1 percent nitroglycerin UN 2308 - Nitrosylsulfuric acid, liquid UN 1799 - Nonyltrichlorosilane UN 1800 - Octadecyltrichlorosilane UN 1801 - Octyltrichlorosilane UN 2788 - Organotin compounds, liquid, n.o.s. UN 2471 - Osmium tetroxide UN 1369 - p-Nitrosodimethylaniline UN 1670 - Perchloromethyl mercaptan UN 1483 - Peroxides, inorganic, n.o.s UN 2487 - Phenyl isocyanate UN 1804 - Phenyltrichlorosilane UN 1805 - Phosphoric acid solution UN 1810 - Phosphorous oxychloride UN 1339 - Phosphorus heptasulfide, free from yellow or white phosphorus UN 2691 - Phosphorus pentabromide UN 1806 - Phosphorus pentachloride UN 1807 - Phosphorus pentoxide UN 1341 - Phosphorus sesquisulfide, free from yellow or white phosphorus UN 1808 - Phosphorus tribromide UN 1809 - Phosphorus trichloride UN 1343 - Phosphorus trisulfide, free from yellow or white phosphorus UN 2447 - Phosphorus white, molten UN 1381 - Phosphorus, white dry or Phosphorus, white, under water or Phosphorus white, in solution or Phosphorus, yellow dry or Phosphorus, yellow, under water or Phosphorus, yellow, in solution UN 2257 - Potassium UN 1485 - Potassium chlorate UN 2509 - Potassium hydrogen sulfate UN 1811 - Potassium hydrogendifluoride solid UN 3421 - Potassium hydrogendifluoride solution UN 1491 - Potassium peroxide UN 1422 - Potassium sodium alloys, liquid UN 3404 - Potassium sodium alloys, solid UN 1382 - Potassium sulfide, anhydrous or Potassium sulfide with less than 30 percent water of crystallization UN 1277 - Propylamine UN 1280 - Propylene oxide UN 1921 - Propyleneimine, stabilized UN 1816 - Propyltrichlorosilane UN 1423 - Rubidium UN 1905 - Selenic acid UN 2879 - Selenium oxychloride UN 1906 - Sludge, acid UN 1428 - Sodium UN 3320 - Sodium borohydride and sodium hydroxide solution, with not more than 12 percent sodium borohydride and not more than 40 percent sodium hydroxide by mass UN 1495 - Sodium chlorate UN 1496 - Sodium chlorite UN 2439 - Sodium hydrogendifluoride UN 1824 - Sodium hydroxide solution UN 1504 - Sodium peroxide UN 1385 - Sodium sulfide, anhydrous or Sodium sulfide with less than 30 percent water of crystallization UN 2547 - Sodium superoxide UN 1506 - Strontium chlorate UN 1828 - Sulfur chlorides UN 1829 - Sulfur trioxide, stabilized UN 1830 - Sulfuric acid with more than 51 percent acid UN 2796 - Sulfuric acid with not more than 51% acid UN 1831 - Sulfuric acid, fuming with 30 percent or more free sulfur trioxide UN 1831 - Sulfuric acid, fuming with less than 30 percent free sulfur trioxide UN 1832 - Sulfuric acid, spent UN 1834 - Sulfuryl chloride UN 1940 - Thioglycolic acid UN 1836 - Thionyl chloride UN 2474 - Thiophosgene UN 1837 - Thiophosphoryl chloride UN 1871 - Titanium hydride UN 2546 - Titanium powder, dry UN 1352 - Titanium powder, wetted with not less than 25 percent water (a visible excess of water must be present) (a) mechanically produced, particle size less than 53 microns; (b) chemically produced, particle size less than 840 microns UN 2869 - Titanium trichloride mixtures UN 2441 - Titanium trichloride, pyrophoric or Titanium trichloride mixtures, pyrophoric UN 1839 - Trichloroacetic acid UN 2564 - Trichloroacetic acid, solution UN 2442 - Trichloroacetyl chloride UN 1295 - Trichlorosilane UN 2574 - Tricresyl phosphate with more than 3 percent ortho isomer UN 2699 - Trifluoroacetic acid UN 2438 - Trimethylacetyl chloride UN 1298 - Trimethylchlorosilane UN 2502 - Valeryl chloride UN 2443 - Vanadium oxytrichloride UN 2444 - Vanadium tetrachloride UN 1305 - Vinyltrichlorosilane UN 1513 - Zinc chlorate UN 1437 - Zirconium hydride UN 2008 - Zirconium powder, dry UN 1358 - Zirconium powder, wetted with not less than 25 percent water (a visible excess of water must be present) (a) mechanically produced, particle size less than 53 microns; (b) chemically produced, particle size less than 840 microns UN 1932 - Zirconium scrap

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